WASHINGTON (AP) — President Donald Trump on Saturday signed an order to impose stiff tariffs on imports from Mexico, Canada and China, drawing swift retaliation and an undeniable sense of betrayal from the country's North American neighbors as a trade war erupted among the longtime allies.

The Republican president posted on social media that the tariffs were necessary “to protect Americans," pressing the three nations to do more to curb the manufacture and export of illicit fentanyl and for Canada and Mexico to reduce illegal immigration into the U.S.

The tariffs, if sustained, could cause inflation to significantly worsen, threatening the trust that many voters placed in Trump to lower the prices of groceries, gasoline, housing, autos and other goods as he promised. They also risked throwing the global economy and Trump’s political mandate into turmoil just two weeks into his second term.

Trump declared an economic emergency in order to place duties of 10% on all imports from China and 25% on imports from Mexico and Canada. Energy imported from Canada, including oil, natural gas and electricity, would be taxed at a 10% rate. Trump’s order includes a mechanism to escalate the rates charged by the U.S. against retaliation by the other countries, raising the specter of an even more severe economic disruption.

“The actions taken today by the White House split us apart instead of bringing us together,” Canadian Prime Minister Justin Trudeau said in a somber tone as he announced that his country would put matching 25% tariffs on up to $155 billion in U.S. imports, including alcohol and fruit.

He channeled the betrayal that many Canadians are feeling, reminding Americans that Canadian troops fought alongside them in Afghanistan and helped respond to myriad crises from wildfires in California to Hurricane Katrina.

“We were always there standing with you, grieving with you, the American people,” he said.

Mexico’s president also ordered retaliatory tariffs.

"We categorically reject the White House’s slander that the Mexican government has alliances with criminal organizations, as well as any intention of meddling in our territory,” Mexican President Claudia Sheinbaum wrote in a post on X while saying she had instructed her economy secretary to implement a response that includes retaliatory tariffs and other measures in defense of Mexico’s interests.

“If the United States government and its agencies wanted to address the serious fentanyl consumption in their country, they could fight the sale of drugs on the streets of their major cities, which they don’t do and the laundering of money that this illegal activity generates that has done so much harm to its population.”

The premier of the Canadian province of British Columbia, David Eby, specifically called on residents to stop buying liquor from U.S. “red” states and said it was removing American alcohol brands from government store shelves as a response to the tariffs.

China’s Ministry of Foreign Affairs said the country's government “firmly deplores and opposes this move and will take necessary countermeasures to defend its legitimate rights and interests.”

China began regulating fentanyl-related drugs as a class of controlled substances in 2019 and conducted “counternarcotics cooperation with the U.S.," the ministry said, calling on the U.S. government to correct what it considers wrongful actions.

The Ministry of Commerce in China said it would file a lawsuit with the World Trade Organization for the “wrongful practices of the U.S.” and take measures to safeguard its rights and interests.

The tariffs will go into effect on Tuesday, setting up a showdown in North America that could potentially sabotage economic growth. A new analysis by the Budget Lab at Yale laid out the possible damage to the U.S. economy, saying the average household would lose the equivalent of $1,170 in income from the taxes. Economic growth would slow and inflation would worsen, and the situation could be even worse with retaliation from other countries.

Democrats were quick to warn that any inflation going forward was the result of Trump’s actions.

“You’re worried about grocery prices. Don’s raising prices with his tariffs,” Senate Democratic leader Chuck Schumer of New York wrote in a series of posts on X. “You’re worried about tomato prices. Wait till Trump’s Mexico tariffs raise your tomato prices,” read another. “You’re worried about car prices. Wait till Trump’s Canada tariffs raise your car prices,” read another.

A senior U.S. administration official, speaking on condition of anonymity to brief reporters, said the lower rate on energy reflected a desire to minimize disruptive increases on the price of gasoline or utilities. That's a sign White House officials understand the gamble they're taking on inflation. Price spikes under former President Joe Biden led to voter frustration that helped return Trump to the White House.

The order signed by Trump contained no mechanism for granting exceptions, the official said, a possible blow to homebuilders who rely on Canadian lumber as well as farmers, automakers and other industries.

The official did not provide specific benchmarks that could be met to lift the new tariffs, saying only that the best measure would be fewer Americans dying from fentanyl addiction.

The order would also allow for tariffs on Canadian imports of less than $800. Imports below that sum are currently able to cross into the United States without customs and duties.

“It doesn’t make much economic sense,’’ said William Reinsch, senior adviser at the Center for Strategic and International Studies and a former U.S. trade official. “Historically, most of our tariffs on raw materials have been low because we want to get cheaper materials so our manufacturers will be competitive ... Now, what’s he talking about? He’s talking about tariffs on raw materials. I don’t get the economics of it.’’

With the tariffs, Trump is honoring promises that are at the core of his economic and national security philosophy. But the announcement showed his seriousness around the issue as some Trump allies had played down the threat of higher import taxes as mere negotiating tactics.

The president is preparing more import taxes in a sign that tariffs will be an ongoing part of his second term. On Friday, he mentioned imported computer chips, steel, oil and natural gas, as well as copper, pharmaceutical drugs and imports from the European Union — moves that could essentially pit the U.S. against much of the global economy.

Trudeau warned of economic pain as the tariffs take effect and encouraged Canadians to "choose Canadian products and services rather than American ones.” But he also voiced optimism in the enduring relationship between the two countries.

“It is going to have real consequences for people, for workers on both sides of our border. We don’t want to be here. We didn’t ask for this, but we will not back down in standing up both for Canadians and for the incredible successful relationship between Canada and the United States,” Trudeau said.

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Boak reported from Palm Beach, Florida, Sherman reported from Mexico City and Gillies reported from Toronto. Associated Press writer Paul Wiseman in Washington contributed to this report.

PHILADELPHIA (AP) — A medical transport jet with a child patient, her mother and four others aboard crashed into a Philadelphia neighborhood shortly after takeoff Friday evening, exploding in a fireball that engulfed several homes.

Jet Rescue Air Ambulance, which operated the Learjet 55, said in a statement: “We cannot confirm any survivors.” There was no immediate word whether anyone on the ground was killed.

All six people aboard were from Mexico. The child had been treated in Philadelphia for a life-threatening condition and was being transported home, according to Jet Rescue spokesperson Shai Gold. The flight’s final destination was to have been Tijuana after a stop in Missouri.

The patient and her mother were on board along with four crew members. Gold said this was a seasoned crew and everyone involved in these flights goes through rigorous training.

“When an incident like this happens, it’s shocking and surprising,” Gold told The Associated Press. “All of the aircraft are maintained, not a penny is spared because we know our mission is so critical.”

Pennsylvania Gov. Josh Shapiro said at a news conference late Friday that officials expected fatalities in the “awful aviation disaster.”

“We know that there will be loss,” he said.

Six people with injuries attributed to the crash were taken to Temple University Hospital — Jeanes Campus, near Northeast Philadelphia — where three were in fair condition and three others were treated and released, a spokesperson for the institution said.

The plane was registered in Mexico. Jet Rescue is based in Mexico and has operations both there and in the U.S.

The crash came just two days after the deadliest U.S. air disaster in a generation. On Wednesday night, an American Airlines jet carrying 60 passengers and four crew members collided in midair in Washington, D.C., with an Army helicopter carrying three soldiers. There were no survivors.

The Philadelphia crash was the second fatal incident in 15 months for Jet Rescue. In 2023 five crewmembers were killed when their plane overran a runway in the central Mexican state of Morelos and crashed into a hillside.

In Philadelphia, a doorbell camera captured video of the plane plunging in a streak of white and exploding as it hit the ground near a shopping mall and major roadway.

“All we heard was a loud roar and didn’t know where it was coming from. We just turned around and saw the big plume,” said Jim Quinn, the owner of the doorbell camera.

The crash happened less than 3 miles (5 kilometers) from Northeast Philadelphia Airport, which primarily serves business jets and charter flights.

The Learjet 55 quickly disappeared from radar after taking off from the airport at 6:06 p.m. and climbing to an altitude of 1,600 feet (487 meters). It was registered to a company operating as Med Jets, according to the flight tracking website Flight Aware.

In a post on the social media platform Truth Social, President Donald Trump said: “So sad to see the plane go down in Philadelphia.”

“More innocent souls lost,” he added. “Our people are totally engaged.”

A continuous stream of police vehicles and fire trucks initially responded at the crash site, taking over business parking lots. Within about an hour, the cry of sirens and shouted orders had faded into relative quiet at the edges of the closed-off area, and darkness settled in as drivers passing by peered out trying to see what was happening.

The plane crashed in a busy intersection near Roosevelt Mall, an outdoor shopping center in the densely populated neighborhood of Rhawnhurst.

One cellphone video taken by a witness moments after the crash showed a chaotic scene with debris scattered across the intersection. A wall of orange glowed just beyond as a plume of black smoke rose into the sky and sirens blared.

Michael Schiavone, 37, was sitting at his home in Mayfair, a nearby neighborhood, when he heard a loud bang and his house shook. He said it felt like a mini earthquake and when he checked his home security camera, it looked like a missile came down.

“There was a large explosion, so I thought we were under attack for a second,” he said.

Jet Rescue, which provides global air ambulance services, flew baseball Hall of Famer David Ortiz to Boston after he was shot in the Dominican Republic in 2019 and was involved in transporting patients critically ill with COVID-19.

The FAA said the National Transportation Safety Board will lead the investigation. The NTSB said an investigator arrived and more officials would be there Saturday.

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Associated Press writers Rio Yamat, Hallie Golden and Josh Cornfield contributed to this report.

ARLINGTON, Va. (AP) — A midair collision between an Army helicopter and a jetliner killed all 67 people aboard the two aircraft, officials said Thursday, as they scrutinized the actions of the military pilot in the country's deadliest aviation disaster in almost a quarter century.

At least 28 bodies were pulled from the icy waters of the Potomac River after the helicopter apparently flew into the path of the American Airlines regional jet late Wednesday while it was landing at Ronald Reagan National Airport, just across the river from Washington, officials said. The plane carried 60 passengers and four crew members, and three soldiers were aboard the helicopter.

President Donald Trump told a White House news conference that no one survived.

“We are now at the point where we are switching from a rescue operation to a recovery operation,” said John Donnelly, the fire chief in the nation’s capital.

The crash occurred before 9 p.m. in some of the most tightly controlled and monitored airspace in the world, just over 3 miles (about 4.8 kilometers) south of the White House and the Capitol.

Air crash investigations can take months, and federal investigators told reporters they would not speculate on the cause.

National Transportation Safety Board investigators recovered the cockpit voice recorder and the flight data recorder from the Bombardier CRJ700 airplane, agency spokesperson Peter Knudson said. They were at the agency's labs for evaluation.

The plane was found upside-down in three sections in waist-deep water, and first responders were searching miles of the Potomac, Donnelly said. The helicopter wreckage was also found. Images from the river showed boats around the partly submerged wing and the mangled wreckage of the plane’s fuselage.

American Airlines CEO Robert Isom said the plane was making a normal approach when “the military aircraft came into the path” of the jet.

One air traffic controller was responsible for coordinating helicopter traffic and arriving and departing planes when the collision happened, according to a report by the Federal Aviation Administration that was obtained by The Associated Press. Those duties are often divided between two people, but the airport typically combines the roles at 9:30 p.m, once traffic begins to slow down. On Wednesday the tower supervisor directed that they be combined earlier.

“The position configuration was not normal for the time of day and volume of traffic,” the report said. A person familiar with the matter, however, said the tower staffing that night was at a normal level.

The positions are regularly combined when controllers need to step away from the console for breaks, during shift changes or when air traffic is slow, the person said, speaking on the condition of anonymity to discuss internal procedures.

The Federal Aviation Administration has long struggled with a shortage of air traffic controllers.

Officials said flight conditions were clear as the jet arrived from Wichita, Kansas, carrying, among others, a group of elite young figure skaters, their parents and coaches, and four union steamfitters from the Washington area.

A top Army aviation official said the crew of the helicopter, a Black Hawk, was “very experienced” and familiar with the congested flying that occurs daily around the city.

“Both pilots had flown this specific route before, at night. This wasn’t something new to either one of them,” said Jonathan Koziol, chief of staff for Army aviation.

The helicopter's maximum allowed altitude at the time was 200 feet (about 60 meters), Koziol said. It was not immediately clear whether it exceeded that limit, but Defense Secretary Pete Hegseth said altitude seemed to be a factor in the collision.

Koziol said investigators need to analyze the flight data before making conclusions about altitude.

Trump opened the news conference with a moment of silence honoring the crash victims, calling it an “hour of anguish” for the country.

But he spent most of his time casting political blame, lashing out at former President Joe Biden's administration and diversity efforts at the Federal Aviation Administration, saying they had led to slipping standards — even as he acknowledged that the cause of the crash was unknown.

Without evidence, Trump blamed air traffic controllers, the helicopter pilots and Democratic policies at federal agencies. He claimed that the FAA was “actively recruiting workers who suffer severe intellectual disabilities, psychiatric problems and other mental and physical conditions under a diversity and inclusion hiring initiative.”

Inside Reagan National, the mood was somber Thursday as stranded passengers waited for flights to resume, sidestepping camera crews and staring out the windows at the Potomac, where recovery efforts were barely visible in the distance.

Aster Andemicael had been there since the previous evening with her older adult father, who was flying to Indiana to visit relatives. She spent much of the long night thinking about the victims and their families.

“I’ve been crying since yesterday,” Andemicael said, her voice cracking. “This is devastating.”

Flights resumed around midday.

The deadliest plane crash since November 2001

Wednesday's crash was the deadliest in the U.S. since Nov. 12, 2001, when an American Airlines flight slammed into a residential area of Belle Harbor, New York, just after takeoff from Kennedy Airport, killing all 260 people aboard and five people on the ground.

The last major fatal crash involving a U.S. commercial airline occurred in 2009 near Buffalo, New York. Everyone aboard the Bombardier DHC-8 propeller plane was killed, along with one person on the ground, bringing the total death toll to 50.

Experts often highlight that plane travel is overwhelmingly safe, however. The National Safety Council estimates that Americans have a 1-in-93 chance of dying in a motor vehicle crash, while deaths on airplanes are too rare to calculate the odds. Figures from the Department of Transportation tell a similar story.

But the airspace around Reagan National can challenge even the most experienced pilots no matter how ideal the conditions. They must navigate hundreds of other commercial planes, military aircraft and restricted areas around sensitive sites.

Just over 24 hours before the fatal collision, a different regional jet had to go around for a second chance at landing at Reagan National after it was advised about a military helicopter nearby, according to flight tracking sites and control logs. It landed safely minutes later.

Tragedy stuns Wichita

The crash devastated the Kansas city, which prides itself on being in America's heartland. Wichita hosted the U.S. Figure Skating Championships this year for the first time, along with training camps for top young skaters.

The city has been a major hub for the aircraft industry since the early days of commercial flight, and it is home to the U.S. headquarters for Bombardier, which manufactured the jetliner. So many regional workers have jobs tied to the industry that the area's economy slumps when sales dip.

Several hundred people gathered in the city council chambers for a prayer vigil.

“We will get through this, but the only way we will get through this is together,” said the Rev. Pamela Hughes Mason of St. Paul AME Church.

Collision happened in tightly controlled airspace

Flight 5342 was inbound to Reagan National at an altitude of about 400 feet (122 meters) and a speed of about 140 mph (225 kph) when it rapidly lost altitude over the Potomac, according to data from its radio transponder. The Canadian-made Bombardier CRJ-700 twin-engine jet, manufactured in 2004, can be configured to carry up to 70 passengers.

A few minutes before the crash, air traffic controllers directed the jet to a shorter runway, and flight-tracking sites showed that it adjusted its approach.

Less than 30 seconds before the collision, an air traffic controller asked the helicopter if it had the arriving plane in sight.

A crewmember said the aircraft was in sight and requested “visual separation” — allowing it to fly closer than otherwise might be allowed if pilots did not see the plane. Controllers approved the request.

Seconds later, the two aircraft collided.

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Gomez Licon reported from Miami. Associated Press writers Zeke Miller, Meg Kinnard, Chris Megerian, Michael Biesecker in Washington; Claudia Lauer in Arlington, Virginia; Brian Melley in London; John Hanna in Wichita, Kansas; and Sarah Brumfield in Cockeysville, Maryland, contributed.

A jet with 60 passengers and four crew members collided with an Army helicopter while approaching Ronald Reagan National Airport near Washington, D.C., sending the two aircraft plummeting into the Potomac River and killing everyone on board.

The collision occurred at around 9 p.m. Wednesday in one of the world's most tightly controlled airspaces, just over 3 miles (5 kilometers) south of the White House and U.S. Capitol. A search-and-rescue effort turned into a recovery operation by mid-Thursday morning. The cause was not immediately clear.

Here are some things to know about the collision:

The crash

The collision involved a regional jet out of Wichita, Kansas, that was preparing to land and a military helicopter carrying three soldiers that was on a training exercise, according to the Federal Aviation Administration. Skies were clear at the time.

A few minutes before the jet was to land, air traffic controllers asked American Airlines Flight 5342 if it could do so on a shorter runway, and the pilots agreed. Controllers cleared the jet to land and flight tracking sites showed the plane adjust its approach to the new runway.

Less than 30 seconds before the collision, an air traffic controller asked the helicopter if it had the plane in sight. The controller made another radio call to the helicopter moments later, saying “PAT 25 pass behind the CRJ" — apparently telling the copter to wait for the Bombardier CRJ-701 twin-engine jet to pass. There was no reply, and the aircraft collided seconds later.

The plane’s radio transponder stopped transmitting about 2,400 feet (732 meters) short of the runway, roughly over the middle of the Potomac. The body of the plane was found upside-down in three sections in waist-deep water, officials said.

The helicopter's wreckage was also found in the river.

NTSB officials said they were working to recover the data recording equipment from both aircraft.

The investigation and questions

Federal investigators will try to piece together the moments before the collision, including any communication between the two aircraft and air traffic controllers, as well as other pilot actions and the altitude of both aircraft.

One air traffic controller was responsible for coordinating helicopter traffic and arriving and departing planes when the collision happened, according to a report by the Federal Aviation Administration obtained by The Associated Press.

The work is normally assigned to two people in the tower so the configuration was “not normal,” the report said. But a person familiar with the matter said staffing at the tower Wednesday night was at a normal level.

The positions are regularly combined when controllers need to step away from the console for breaks, are in the process of a shift change, or air traffic is slow, the person said, speaking on the condition of anonymity to discuss internal procedures.

President Donald Trump, Transportation Secretary Sean Duffy and Secretary of the Army nominee Daniel Driscoll said it appeared that the crash could have been avoided.

At a news conference, Trump — without evidence — cast blame on the helicopter pilots and baselessly alleged that diversity initiatives had undermined air safety.

Later Thursday, Trump signed a presidential memorandum on aviation safety that he said will undo “damage” done to related federal agencies by the Biden administration. Trump again criticized policies meant to promote diversity and inclusion — drawing criticism from Black lawmakers.

The victims

It was the deadliest U.S. air crash in nearly 24 years. At least 28 bodies have been pulled from the icy waters, including those of the three soldiers who were on the helicopter.

Among the passengers were members of the Skating Club of Boston who were returning from a development camp that followed the 2025 U.S. Figure Skating Championships in Wichita.

In all, 14 people from the skating community were on the plane, said club CEO Doug Zeghibe. They included teenage figure skaters Jinna Han and Spencer Lane, the teens' mothers and two Russian-born coaches, Evgenia Shishkova and Vadim Naumov, who won a 1994 world championship in pairs skating.

Three students from schools in Fairfax County, Virginia, and six parents from the district also were on the plane, said superintendent Michelle Reid.

Those killed also included four steamfitters, all members of a United Association union local in suburban Maryland, union leaders said.

Jonathan Koziol, chief of staff for Army aviation, said the helicopter crew was “very experienced” and familiar with the congested flying that occurs daily around Washington. Their identities have not been released.

The airport

Located along the Potomac just southwest of Washington, Reagan Airport is a popular choice because it’s much closer to the city than the larger Dulles International Airport. It reopened Thursday morning after all takeoffs and landings were halted.

Transportation Secretary Sean Duffy said at a news conference that prior to the collision, the plane and helicopter flight paths “were not unusual for what happens in the D.C. airspace."

“I would just say that everyone who flies in American skies expects that we fly safely," he said. "That when you depart an airport, you get to your destination. That didn’t happen last night, and I know that President Trump, his administration, the FAA, the DOT, we will not rest until we have answers for the families and for the flying public.”

Federal authorities and aviation experts have expressed concerns about an increase in close calls between planes. At Reagan in May, an American Airlines plane rolling down the runway canceled its takeoff to avoid colliding with another plane that was landing on an intersecting runway. It was the second close call at the airport in six weeks.

The aircraft

The helicopter was a UH-60 Black Hawk based at Fort Belvoir in Virginia, according to the Army.

The plane was a Canadian-made Bombardier CRJ-701 twin-engine jet and was manufactured in 2004. It can carry up to 70 passengers.

History of fatal aircraft crashes

Fatal crashes of commercial aircraft in the U.S. are rare. The last major crash was in 2009 near Buffalo, New York. All 45 passengers and the four crew members were killed when the Bombardier DHC-8 propeller plane crashed into a house. One person on the ground was also killed.

In November 2001, an American Airlines flight crashed into a residential area of Belle Harbor, New York, just after takeoff from Kennedy Airport, killing all 260 people aboard.

The collision Wednesday recalled the crash of an Air Florida flight that plummeted into the Potomac on January 13, 1982, killing 78 people. That crash was attributed to bad weather.

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Associated Press writer Zeke Miller in Washington and reporters from throughout the U.S. contributed.